As if Pink Floyd fans didn’t have enough to celebrate this week, Roger Waters and David Gilmour reunited in London on Thursday night for a performance of The Wall‘s “Comfortably Numb”. The news was first revealed on Gilmour’s blog, which added that the performance “is most definitely a one-off; David is not repeating his special guest performance at a later occasion, I’m sorry to disappoint those of you with fingers crossed and tickets for later shows.” Don’t get too bummed out, though, as the performance was being filmed “so that it may be posted on various websites.”